<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>I thought this was in the overview, but maybe I'm wrong, I wrote it a long time ago.</div><div><br></div><div>Start with a talk about /proc and /proc/sys and sysctl, then /sys, finishing with tuned.</div><div><br></div><div>Not a ton of use case baked into the preso, but tunables like swappiness or huge pages gear themselves to the obligatory database and JVM mention, respectively.</div><div><br></div><div>-Scott<br><br></div><div><br>On Oct 21, 2014, at 9:51 AM, James Sumners <<a href="mailto:james.sumners@gmail.com">james.sumners@gmail.com</a>> wrote:<br><br></div><blockquote type="cite"><div><div dir="ltr">I understand you have to focus on 7 with a subfocus on 6. Sadly, the USG's IT support doesn't move that fast so I'm stuck on 5 where I require their support. And I'm only just now moving up to 6 one the systems I don't (haven't had time to setup a test 7 environment). So I'm just trying to gauge if the drive up there is going to benefit me much. <div><br></div><div>What sort of performance scenarios are you targeting in your overview?</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Oct 21, 2014 at 8:42 AM, Scott McBrien <span dir="ltr"><<a href="mailto:smcbrien@gmail.com" target="_blank">smcbrien@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto"><div>Most of it applies to both 5 and 6. tuned only 6 and 7, though it might have been added for 5, I've not worked on one of those in a few years, but it's an easy bolt-on with the tuned package, so they might have ported it to 5 as well. I wrote the preso for 7, and tuned for 7 has a bunch of systemd things now, but the basic mechanics of switching profiles is largely unchanged from earlier versions. The big difference with 7 is what happens when the profile is activated.</div><div><br></div><div>I mean, the preso is an hour +/-, so how crazy can I really get? Realize that the Perf Tuning class RH offers is 4 days...</div><span class="HOEnZb"><font color="#888888"><div><br></div><div>-Scott<br><br></div></font></span><div><div class="h5"><div><br>On Oct 20, 2014, at 9:46 PM, James Sumners <<a href="mailto:james.sumners@gmail.com" target="_blank">james.sumners@gmail.com</a>> wrote:<br><br></div><blockquote type="cite"><div><div dir="ltr">How much would really apply to 6, and maybe 5?</div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Oct 20, 2014 at 2:47 PM, scott mcbrien <span dir="ltr"><<a href="mailto:smcbrien@gmail.com" target="_blank">smcbrien@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div>Tomorrow night is a meeting of the Red Hat User Group - Atlanta. Topic is "Introduction to Performance Tuning" if anyone is interested, they can apply to the meetup:<br><br><a href="http://www.meetup.com/Atlanta-Red-Hat-User-Group/" target="_blank">http://www.meetup.com/Atlanta-Red-Hat-User-Group/</a><br><br></div>We generally keep membership to RH customers, but Red Hat adjacent technical folks are good too.<span><font color="#888888"><br><br></font></span></div><span><font color="#888888">-Scott<br></font></span></div>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br>James Sumners<br><a href="http://james.roomfullofmirrors.com/" target="_blank">http://james.roomfullofmirrors.com/</a><br><br>"All governments suffer a recurring problem: Power attracts pathological personalities. It is not that power corrupts but that it is magnetic to the corruptible. Such people have a tendency to become drunk on violence, a condition to which they are quickly addicted."<br><br>Missionaria Protectiva, Text QIV (decto)<br>CH:D 59
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br>James Sumners<br><a href="http://james.roomfullofmirrors.com/">http://james.roomfullofmirrors.com/</a><br><br>"All governments suffer a recurring problem: Power attracts pathological personalities. It is not that power corrupts but that it is magnetic to the corruptible. Such people have a tendency to become drunk on violence, a condition to which they are quickly addicted."<br><br>Missionaria Protectiva, Text QIV (decto)<br>CH:D 59
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